On Sat, 11 Jan 2025, Michel Verdier wrote: > If I remember well you have to first set the device as faulty with --fail > before --remove could be accepted.
No luck : root@titan ~ mdadm --fail /dev/md4 --remove /dev/sdb7 mdadm: hot remove failed for /dev/sdb7: Device or resource busy > But if this is the last device you can erase the partition to remove RAID > informations. I intend to erase the partition, but I hoped for something cleaner from an mdadm RAID management point of view. Roger
